• Vishal Verma's avatar
    tools/testing/nvdimm: add watermarks for dax_pmem* modules · 92f6f2d7
    Vishal Verma authored
    Add nfit_test 'watermarks' for the dax_pmem, dax_pmem_core, and
    dax_pmem_compat modules. This causes the nfit_test module to fail
    loading in case any of these modules are also not overridden with the
    ldconfig wrapped modules. Without this, nfit_test would sometimes fail
    creation of device-dax namespaces on the nfit_test_bus with an unhelpful
    error log such as:
    
        dax_pmem dax5.0: could not reserve metadata
        dax_pmem: probe of dax5.0 failed with error -16
    
    Which was caused due to the unwrapped version of
    devm_request_mem_region() being called.
    
    Cc: Dan Williams <dan.j.williams@intel.com>
    Signed-off-by: default avatarVishal Verma <vishal.l.verma@intel.com>
    Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
    92f6f2d7
nfit.c 88.6 KB